Coking oven



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COKING OVEN Filed Jan. 20, 1934 2 Sheets-Sheet 2 59 5 NVENTOR TTORNEY LGJM Patented Aug. 24, 1937 UNITED STATES PATENT OFFICE COKING OVEN Carl Schumacher, Bochum, Germany Application January 20, 1934, Serial No. 707,533 In Germany January'20, 1933 7 Claims.

bituminous coal. The quantity of gas obtained by the distillation of the briquettes is so small, and its content of useful by-products so immaterial, that the recovery of the by-products does not pay, and the use of all the gas obtained in heating the known ovens, intended for this purposefnoes the coking chambers and heating walls.

not insure the proper heating of the ovens.

The invention has for its object to improve heating conditions in an oven adapted for the above mentioned use, and is characterized 5 the passage of the distillation gases from theccik- H ing it through special recuperative heating chambers receiving heat from the waste gases. Said heating chambers are disposed at one side of the oven, and the vertical gas supply channels at the other side, and the preheated air for combustion is led to the ends of the heating flue ends connected to the vertical gas supply channels through special air feed channels, arranged in the heating walls and serving as recuperator chambers. Every gas supply channel may have associated with it an individual preheating recuperator chamber. The heating walls maybe subdivided into two vertical rows of horizontal heating lines. The horizontal feed channels for the preheated air of combustion then may be situated between the heating fiues.

The primary advantage obtained with coking ovens constructed in accordance with the invention, results from the fact that the flow paths through which the unpurified distillation gases pass to the heating fines are very short and comprise channels which are easily accessible from the-outside, since they are situated in an outer wall portion of the oven structure. Furthermore, since combustion in the heating walls is initiated in proximity to an outer wall of the structure,

damper regulation of the gas and air inlet openings is readily obtained.

The ovens may be provided with any usual or suitable charging and discharging means, for intermittently feeding briquettes or other material to be treated into each oven chamber at its top, and for intermittently withdrawing the treatedmaterial from the bottom of eachoven chamber. I

Further details of the invention will be described with reference to the drawings, in which:

Fig. 1 is a vertical section of the oven struc-. ture, in the longitudinal direction of the oven chambers and heating walls, on the broken line l-| of Fig. 3;

Fig. 2 is a partial horizontal section on the line 2-2 of .Fig. .1;

Fig. 3isa partial vertical section on the line 33 of Fig. 1;

Fig. 4 is a partial vertical section on the line 4-4 of Fig. 1; and

Fig. 5 is a horizontal section on the line 5-5 of Fig. 1.

The coking oven structure shown in the drawings, comprises a row of side by side oven chambers a, transverse to, and extending into proximity with, theright hand side of the structure, as the latter is seen in Figs. 1 and 2. The hereinafter described recuperative airpreheating provisions are located in, the portion of the oven structure between the left hand side of the latter as, seen in Figs'l and '2, and the adjacent ends of. the chambers 41. The gas produced by the distillationlof the briquettes in the chambers 01., enters vertical channels at, there being one such channehas showmbetween the right hand end of each chamber a. and the adjacent side of the structure. The channelsd are in communication with one another through a horizontal top flue e, adjacent the right hand side of the structure. The heating ,wallbetween each two adjacent coking chambers a, includes a vertical row of. horizlontal ..,heating or combustion flues 7c alongside, and individual, to, each coking chamber a,' and includes two side by side vertical rows of horizontal combustion. air supply fiues n (Fig. 5), between the two rows of, fines is in the wall. The heating fines is at each side of each chamber a, receive gas'frorn the channel d at, the end of the chamber, through ports regulated by damper bricks or p'artsfs, which'may be manipulated through holes in the side of the structure fitted with removable plugs w. At the same side of the .oven structure at which it receives gas mm the corresponding channel (I, each heating flue it receives preheated combustion air through ports p from the adjacent supply channel n, in amounts which may be regulated by adjustment of damper bricks or parts 8 respectively adjacent the ports p.

The air for combustion first streams through air heating, horizontal recuperative chambers m which are in communication at their right hand ends, as seen in Figs. 1 and 5, with the left hand ends of channels n. The air preheating chambers m communicating with the channels 1!. in each vertical row of the latter, are arranged in a vertical row in which they alternate with horizontal waste heat chambers r. The latter communicate at their right hand ends with the adjacent ends of the combustion flues k in a corresponding vertical row of the latter. As shown, in Figs. 1 and 2, the chambers 1 communicating with the heating fines is at the opposite side of each chamber a, discharge into the same vertical duct t, which is in communication with the said chambers T adjacent the left hand side of the structure, as seen in Fig. 2 through ports which may be regulated by damper bricks or parts 0. The products of combustion entering the vertical ducts 73, pass upward through the latter to the discharge stack. In order to improve the heat exchange between the products of combustion and the air for combustion passing through the chambers T and m, respectively, the chambers m may be provided with baflle plates 0, extending transversely to the direction of air flow as shown in Fig. 5.

Having now described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. In a coking oven, a row of side by side coking chambers and heating walls'alternating with one another and extending transversely to two opposing sides of the oven, said chambers being adapted to intermittently receive material, to be treated therein at their tops and to intermittently discharge the treated material at their bottoms, vertical gas supply channels adjacent one of said oven sides and connected with the gas collecting spaces of said chambers, chambers for preheating air for combustion adjacent the other of said oven sides, said heating walls comprising horizontal heating fiues each communicating at one end with one of said gas supply channels and each having a waste heat chamber extension at its opposite end in heat transfer relation with an adjacent air preheating chamber, and horizontal connecting channels in said heating walls through which said air heating chambers communicate with the ends of the heating flues which are in communication with said gas supply channels.

2. In a coking oven, a row of side by side coking chambers and heating walls alternating with one another and extending transversely to two opposing sides of the oven, said chambers being adapted to intermittently receive material to be treated therein at their tops and to intermittently discharge the treated material'at their bottoms, vertical gas supply channels adjacent one of said oven sides and connected with the gas collecting spaces of said chambers, chambers for preheating air for combustion adjacent the other of said oven sides, said heating walls'comprising horizontal heating flues each communicating at one end with one of said gas supply channels and each having a wasteheat chamber extension at its opposite end in heat transfer relation with an adjacent air preheating chamber, and horizontal connecting channels in said heating walls one for each of said air heating chambers and through which the latter communicate with a heating flue at the end of the latter in communication with one of said gas supply channels.

3. In a coking oven, a row of side by side coking chambers and heating walls alternating with one another and extending transversely to two opposing sides of the oven, said chambers being adapted to intermittently receive material to be treated therein at their tops and to intermittently discharge the treated material at their bottoms, vertical gas supply channels adjacent one of said oven sides and connected with the gas collecting spaces of said chambers, chambers for preheating air for combustion adjacent the other of said oven sides, said heating walls comprising horizontal heating flues each communicating at one end with one of said gas supply channels and each having a waste heat chamber extension at its opposite end in heat transfer relation with an adjacent air preheating chamber, and horizontal channels in said heating walls one for each of said flues and in communication with the end of the latter which is in communication with one of said gas supply channels, said horizontal channels communicably connecting said i'lues to said chambers for preheating air.

4. In a coking oven, a row of side by side coking chambers and heating walls alternating with one another and extending transversely to opposing sides of the oven, said chambers being adapted to intermittently receive material to be treated therein at their tops and to intermittently discharge the treated material at their bottoms, vertical gas supply channels adjacent one of said oven sides and communicating with the gas collecting spaces of said chambers, chambers for preheating air for combustion adjacent the other of said oven sides, two rows of superposed horizontal heating flues in each heating wall each of said flues being in communication at one end with one of said supply channels and each having a waste heat chamber extension at its opposite end in heat transfer relation with an adjacent air preheating chamber, and horizontal channels in said heating walls through which the last mentionedchambers communicate with the fiues adjacent the ends of the latter which are in communication with said vertical supply channels.

5. In a coking oven, a row of side by side coking chambers and heating walls alternating with one another and extending transversely to opposing sides of the oven, said chambers being adapted.

to intermittently receive material to be treated therein at their tops and to intermittently discharge the treated material at their bottoms, Vertical gas supply channels adjacent one of said oven sides and communicating with the gas collecting spaces of said chambers, chambers for preheating air for combustion adjacent the other of said oven sides, two rows of superposed horizontal heating fiues in each heating wall each of said flues being in communication with one end.

to one of said supply channels and each having a waste heat chamber extension at its opposite end in heat transfer relation with an adjacent air preheating chamber, and horizontal channels in said heating walls between the rows of heating flues therein and through which'the last mentioned chambers communicate with the flues adjacent the ends of the latter which are in communication with said vertical supply channels.

6. A coking oven structure comprising a row of side by side coking retorts and vertical heating walls alternating with one another and extending transversely to two opposing sides of said structure, each heating wall having a vertical row of superposed horizontal heating flues adjacent one side of the wall and a second vertical row of superposed horizontal heating flues adjacent its other side and superposed horizontal air supply channels between the two rows of heating flues, each of said flues being connected to and receiving air from one of said channels at its end adjacent one of said opposing sides of the structure, recuperator means in said structure adjacent the second of its said opposing sides and comprising horizontal extensions of said flues constituting recuperator waste heat chambers and comprising horizontal extensions of said channels forming recuperator preheating air chambers in heat transfer relation with said waste heat chambers, and means for supplying fuel gas to each of said heating flues at its end adjacent the said one side of said structure.

7. A coking oven structure comprising a row of side by side coking retorts and vertical heating walls alternating with one another and extending transversely to two opposing sides of said structure, each heating wall having a vertical row of superposed horizontal heating flues adjacent one side of the wall and a second vertical row of superposed horizontal heating flues adjacent its other side and superposed horizontal air supply channels between the two rows of heating flues, each of said heating flues being connected to, and receiving air from one of said channels at its end adjacent one of the said opposing sides of the structure, recuperator means in said structure adjacent the second of its said opposing sides and comprising horizontal extensions of said flues constituting recuperator waste heat chambers and comprising horizontal extensions of said channels forming recuperator preheating air chambers in heat transfer relation with said Waste heat chambers, said chambers being arranged in a vertical row in which said waste heat chambers alternate with said air preheating chambers, and means for supplying fuel gas to each of said heating flues at its end adjacent the said one side of said structure.

CARL SCI-IUMACHIER. 

